Oil-well utility gin pole



June 21, 1927 ,935 C. E. T U RNER ET AL OIL WELL UTILITY GIN POLE Filed May 5, 1925 14 7 17 o g 5 g ,0 O g I NV EN TOR.

(SH/412L195 EDA/APD Tap/ 05? 50205 05522" 171L701! Frqi By ZM/ML A TTORNEY. 7

Patented June 21, 1927.

UNITED STATES PATENT. OFFICE.

CHARLES EDWARD TURNER AnnGEoReE ROBERT MILTON, or COVINGTON', OKLAHOMA.

OIL-\VELL UTILITY GIN POLE.

Application filed May 5,1925. 7 Serial No. 28,201.

The objects of our invention are as follows: First, to provide a'portable. gin pole.

Second, to provide a gin pole having a winch attached to the base section thereof.

Third, to provide a gin pole made in sections, and slidably connected by couplings.

Fourth, to provide a sectional gin pole whose length may be varied by adding or omitting intermediate sections.

Fifth, to provide a gin pole the mast whereof is made of tubular casing, the size of which may be determined by the work imposed thereon.

These and other objects will be hereinafter more fully explained.

Fig. 1 is an elevation of the pole, parts being removed for convenience of illustration.

Fig. 2 is a transverse view with a portion of the top removed.

Fig. 3 and Fig. 4 are enlarged detail views of the coupling and relative positions of adjacent sections.

Fig. 5 is an enlarged longitudinal section through the drum.

The pole consists of a plurality of tubular sections 1 connected by couplings 2, said sections provided with steps 3, for ascent or similar means functioning as a ladder. The pole is substantially supported by guy lines as shown at A and B. At the upper extremity of the pole a sheave 4: is rotatably mounted to carry the cable 5, said sheave being provided with cable guiding means 6, and an auxiliary member 7 having a hook 7 to which a block and tackle may be attached for the removal and replacing of a defective sheave while the pole is erect. A bail 8 is used as attaching means for raising the pole to its working position or other purposes desired. The lower extremity of the pole 1, rests on the cross member 9, and is made rigid thereto by the inclined knee braces 10, which are also the supporting means for cross rods 11 and winch mounted as shown. Said winch includes a drum 12, carrying the cable 5, said cable drum being rigidly connected to brake drum 13 at one end and being connectible to driving sprocket 1 1 at the other end, by means of the clutching mechanism 15. These parts are mounted on the shaft 16, trunnioned in the bearings 17, and carried on the members 18 which are supported by the knee braces 10 heretofore described.

It will be understood that, the cable drum and brake drum are keyed to the shaft .16. The sprocket 1 1 is free to revolve on shaft 16 until locked to same by clutch 15, said clutch being operated by lever 19. A brake band 20 engages on the brake drum 13 and is tightened to the desired tension by means of lever'21. This braking means is used to control the unwinding of the cable when the clutch is released. The brake and clutch levers are shown on what would be termed the outside for convenience of illustration, but preferably placed on the opposite side when assembled.

In Figures 3 and 4 we have shown an enlarged detail of the coupling, the inside diameter of which is equal to or slightly larger than the outside diameter of the casing members comprising the pole and adapted to slide snugly together engaging with a web C which is centrally positioned in the coupling, the said web functioning as a gage or stopping means for the end of the casing. It will be further understood that the web will prevent telescoping of the tubing when larger diameters are employed or casing having thin walls are employed.

The operation of our invention is as follows:

The base member and its rigidly connectcd parts are carried to the vicinity of the well, also the several sections and other parts. The sections are connected together by means of the couplings 2, the coupling 2 being permanently connected to the base sec tion and connecting it to the first section above it. WVhen the desired number of sections are in place and the sheave-bearing section is properly connected thereto, the pole is raised into position denoted in Fig. 1 and firmly guyed with the cable 5 and its hook I) in vertical position over an oil well casing E. A motive power device is connected by a chain to the sprocket which furnishes the driving'means for the drum when engaged by the clutch to raise the hook D and any load which may be fastened thereto. The hook is lowered by the'release ofthe clutch and its rate of descent controlled by the brake drum.

The mechanism herein described is adapted for use in connection with oil-well operation, such as drawing casing, swabbing, fishing for tools, pump repairs, etc.

5 pole Comprising abase member, a top member, and intermediate members, a transverse member Connected to the lower-endof said base member, inclined brace members engaging on the outer ends of said transverse 10' member and connected to the top of said base member assupportin'g means fbr a winch, a' sheave ro'tatably mountedin the i end of said top member, a cable means 6, andan auxil a member member positioned in wor ing relation with said sheave, a bail pivotallye connected to the g7uiding said 1 axle of said sheave, slipjoint couplings to re ceive the ends of said members, an annular flange-in sa d eouphng functioning as a stop or bearlng for said members, allsubstantially as SlIDWIl BJId for the purpose described. V 7

CHARLES EDWARD TURNER. GEORGE ROBERT MILTON; 

